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Gardening Answers Knowledgebase

Plant Answer Line Question

Keywords: Whiteflies, Helleborus, Disease-resistant plants

I have a white fly infestation on Helleborus. Is there any natural control (Rodale recommends tobacco tea) -- anything less labor intensive?

Answer:

According to The Organic Gardener's Handbook of Natural Insect and Disease Control, edited by Barbara Ellis (Rodale Press, 1996), whitefly can be controlled in the following ways:
- Catch adults on yellow sticky traps.
- Vacuum adults from leaves.
- Attract parasitic wasps and predatory beetles.
- Spray with insecticidal soap, kinoprene (Enstar) or garlic oil.
- Last resort: spray with pyrethrin.

Date 2017-05-17
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May 16 2018 11:15:37